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13121444430262 = 27149108718773083
BaseRepresentation
bin1011111011110001001100…
…0010001100000110110110
31201110101202000121210121001
42332330103002030012312
53204440204233232022
643523524112113514
72522664424255630
oct276742302140666
951411660553531
1013121444430262
1141a985633a733
12157b03523589a
137424681a943c
1433511d127a50
1517b4bb35bb27
hexbef1308c1b6

13121444430262 has 64 divisors (see below), whose sum is σ = 22685134233600. Its totient is φ = 5575813762176.

The previous prime is 13121444430233. The next prime is 13121444430277. The reversal of 13121444430262 is 26203444412131.

It is a happy number.

13121444430262 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4256062173 + ... + 4256065255.

It is an arithmetic number, because the mean of its divisors is an integer number (354455222400).

Almost surely, 213121444430262 is an apocalyptic number.

13121444430262 is a deficient number, since it is larger than the sum of its proper divisors (9563689803338).

13121444430262 is a wasteful number, since it uses less digits than its factorization.

13121444430262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6205.

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 13121444430262 its reverse (26203444412131), we get a palindrome (39324888842393).

The spelling of 13121444430262 in words is "thirteen trillion, one hundred twenty-one billion, four hundred forty-four million, four hundred thirty thousand, two hundred sixty-two".

Divisors: 1 2 7 14 149 298 1043 1087 1877 2086 2174 3083 3754 6166 7609 13139 15218 21581 26278 43162 161963 279673 323926 459367 559346 918734 1133741 1957711 2040299 2267482 3215569 3351221 3915422 4080598 5786791 6431138 6702442 11573582 14282093 23458547 28564186 40507537 46917094 81015074 304004551 499331929 608009102 862231859 998663858 1724463718 2128031857 3495323503 4256063714 6035623013 6290241817 6990647006 12071246026 12580483634 44031692719 88063385438 937246030733 1874492061466 6560722215131 13121444430262